LibrePilot Forum
Development => GCS General => Topic started by: J:-osh on April 01, 2018, 01:38:32 pm
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Hello !
In actual fact I wanted to report a bug. Unfortunately this seems not to be possible for normal humans, I didn't find a way to do that.
The bug:
When I try to connect my new Revolution FC, the Rx-Connection doesn't work !
It only works if I connect the FC on the Firmware-TAB and make a firmware-update. After this the connection
is working fine an I can setup the FC.
Bootloader-Version is V. 6, Firmware-Version is 16.09 from 12.12.2016 23:37, FC is detected as a Revolution
(ID: 903 ) everything seems to work as it should.
BUT !: If I disconnect the FC from power and try to connect again the
connection of Rx doesn't work !
I am sure many of you know this bug ! ( see attachment )
What I've already tryed out:
I work with LibrePilot for Ubuntu 14.04 on a Linux-Mint System 32 Bit.
I also tryed on a Linux-Mint System 64 Bit. The same problem.
I also tryed on a Windows XP 32-Bit System. Same problem.
On all this Systems the older CC3D (not the Revolution) works perfectly !
So I guess it must be a problem with the Revolution - Firmware.
What do the experts say to that problem ?
Regards
J:-osh
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I have not heard of such an issue before, but it is fairly common to get a bad USB cable.
One other thing is that some laptops don't make enough power on the USB to run the board reliably.
So things to test (just for a test if nothing else) are:
- wiggle cable both ends (and there may even be a bad wire in the middle)
- try a different USB cable
- try a different computer
When it doesn't work, what do the LEDs look like? If they flash like it is working, then it has USB power, but not USB data.
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Hi TheOtherCliff,
yes, as you've read, I've already tryed out your advices.
I've tryed out on Linux 32Bit, 64Bit and also WinXP.
It works nowhere ! The FC I used at first, the old CC3D works everywhere.
So I really guess, that the controller has a hardware problem.
On the other side, when I make the firmware update ( with the same firmware already running on the FC )
the communication works how it should. Only when I disconnect the system from the power supply, it won't
connect afterwards.
So I think it is not a problem of the LibrePilot GCS but a problem from the controller-board.
I am very well used to microcontroller-boards. I also been wondering as I found this problem nowhere in the
internet. But there is a trouble-shouting from LibrePilot. This trouble-shouting says that it is a problem with the
driver of the hardware and recommends to install the driver again. But it is a Windows-Problem an a Windows Driver.
I can come along with the problem when I allway make a new firmwareupdate and then program the setup-log-file
But it's still really annoying. This controller was not a controller for small money but for EUR > 40,- .
Thanks for your answer !
Kind regards
J:-osh
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When it doesn't work, what do the LEDs look like? If they flash like it is working, then it has USB power, but not USB data.